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Differences in the prefrontal cortex responses of healthy young men performing either water-based or land-based exercise at light to moderate intensity.
- Source :
-
Experimental Brain Research . Apr2023, Vol. 241 Issue 4, p991-1000. 10p. - Publication Year :
- 2023
-
Abstract
- Cerebral blood flow increases more during water-based exercise than land-based exercise owing to the effects of end-tidal CO2 (PETCO2) and mean arterial pressure (MAP) changes due to water immersion. However, it is unclear whether oxygenated hemoglobin (oxy-Hb) concentrations in the prefrontal cortex (PFC) are increased more by water-based or land-based exercise. We hypothesized that oxy-Hb concentrations in the PFC are higher during water-based exercise than land-based exercise when the exercise intensity is matched. To test this hypothesis, 10 healthy participants (age: 24.2 ± 1.7 years; height: 1.75 ± 0.04 m; weight: 69.5 ± 5.2 kg) performed light- to moderate-intensity cycling exercise in water (water-based cycling (WC); chest-high water at 30 °C) and on land (LC). Stroke volume, cardio output, heart rate, MAP, respiratory rate, PETCO2, and oxy-Hb in the PFC were assessed during 15 min of exercise, with exercise intensity increased every 5 min. Both WC and LC significantly increased oxy-Hb concentrations in the PFC as exercise intensity was increased (intensity effect: p < 0.001). There was no significant difference in oxy-Hb concentrations during WC and LC in most prefrontal areas, although significant differences were found in areas corresponding to the left dorsolateral PFC (exercise effect: p < 0.001). Thus, WC and LC increase oxy-Hb concentrations in the PFC in a similar manner with increasing exercise intensity, but part of the PFC exhibits enhanced oxy-Hb levels during WC. The neural response of the PFC may differ during water-based and land-based exercise owing to differences in external information associated with water immersion. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00144819
- Volume :
- 241
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Experimental Brain Research
- Publication Type :
- Academic Journal
- Accession number :
- 162970877
- Full Text :
- https://doi.org/10.1007/s00221-023-06583-z